Atmospheric pollution emission auxiliary detection device
The design of a sampling gun supported by a cover plate and support column with magnetic adsorption solves the sampling difficulties and flue gas overflow problems caused by the height of the chimney, and achieves stable sampling and sealing effect.
Patent Information
- Application Number
- CN202520130927.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In existing technologies, the height of the chimney makes it difficult for the sampling gun to maintain its position for a long time to collect samples, and the unsealed window causes smoke to overflow.
An auxiliary detection device for atmospheric pollution emissions was designed. A cover plate with magnetic adsorption is used to seal the chimney window, and a sampling gun is supported by a support column. A flexible plate and a sealing plate are combined to adapt to chimneys of different diameters and improve the sealing performance.
It enables the sampling gun to maintain its position for a long time while preventing flue gas from overflowing, eliminating the need for operators to stand for extended periods, adapting to different chimney diameters, and improving the sealing effect.
Smart Images

Figure CN223966315U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of atmospheric pollution emission detection technology, and in particular to an auxiliary detection device for atmospheric pollution emissions. Background Technology
[0002] When monitoring air pollution emissions from industrial and mining enterprises, it is necessary to use a flue gas analyzer to detect the flue gas emitted from the chimney. In actual testing, some boilers have metal chimneys with diameters ranging from approximately 160 to 300 mm. Due to the considerable emission height of these chimneys, meaning the top of the chimney is relatively high, it is difficult to extend the sampling gun 3 of the flue gas analyzer to the top of the chimney for sampling.
[0003] To address this issue, technicians created a window 2 in the middle of chimney 1, through which a sampling gun 3 was inserted to collect samples. During sampling, the operator must maintain the sampling gun 3 in a specific posture for an extended period. However, this method has several drawbacks: firstly, the inconvenience of standing at the site and the high elevation make it difficult for the operator to maintain the sampling gun 3 in a fixed position for an extended period; secondly, the window 2 is not sealed, allowing smoke to escape. Utility Model Content
[0004] The purpose of this invention is to provide an auxiliary detection device for air pollution emissions, which facilitates sampling by keeping the sampling gun in a certain posture for a long time, and can seal the window to prevent smoke from escaping.
[0005] To achieve the above objectives, this utility model provides an auxiliary detection device for air pollution emissions, including a cover plate. A magnet is installed on the outer side of the cover plate, and a support column is fixedly connected to the middle of the outer side of the cover plate. A support hole is provided in the support column and penetrates the cover plate. The inner side of the cover plate is used to fit against the outer wall of the chimney to close the window on the chimney.
[0006] The cover plate is a fixed arc-shaped plate.
[0007] The cover plate is a flexible plate.
[0008] A handle is mounted on the magnet.
[0009] Two magnets are installed at each of the outer ends of the cover plate. The handle has a U-shaped structure. The threaded end of the countersunk screw passes through the holes on the cover plate and the magnets, and then screws and fixes itself to the handle.
[0010] A flexible sealing plate is fixedly installed on the inner wall of the cover plate, and an avoidance area is provided on the outer side of the support hole of the sealing plate.
[0011] Compared with the prior art, this utility model has the following technical effects:
[0012] 1. This utility model involves installing magnets on the outside of a cover plate. During use, the cover plate is magnetically attached to the outer wall of the chimney, sealing the chimney windows and preventing flue gas from escaping. The support column can be welded to the cover plate. Because the support column has a certain length, it has a support hole penetrating the cover plate. The sampling tube of the sampling gun can be inserted into the chimney through the support hole, and the support column supports the sampling gun. Thus, after the sampling gun is inserted into the chimney through the support hole, it can maintain a certain posture for sampling for an extended period, allowing the operator to go to the ground without needing to maintain the sampling gun in a specific posture for a prolonged time.
[0013] 2. The cover plate of this utility model is a flexible plate, which allows the cover plate to be bent, thereby enabling the cover plate to adapt to chimneys of different diameters.
[0014] 3. The magnet of this utility model is equipped with a handle, which makes it easy to remove the cover plate after the test is completed.
[0015] 4. This utility model improves the sealing effect between the cover plate and the outer wall of the chimney by setting a sealing plate. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0017] Figure 1 This is a three-dimensional structural diagram of the outer side of this utility model.
[0018] Figure 2 This is a three-dimensional structural diagram of the inner side of this utility model.
[0019] Figure 3 This is a structural diagram of the present invention in use.
[0020] Figure 4 This is a schematic diagram of the main structure of the present invention installed on a chimney.
[0021] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of AA.
[0022] Figure 6 for Figure 5 Enlarged structural diagram at point B.
[0023] Figure label:
[0024] Chimney 1, window 2, sampling gun 3;
[0025] Cover plate 10, magnet 20, support column 30, support hole 31, sealing plate 40, clearance area 41, handle 50, screw 60. Detailed Implementation
[0026] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0027] Example 1:
[0028] Please see Figure 1-2 An auxiliary detection device for air pollution emissions includes a cover plate 10. Magnets 20 are respectively installed at both ends of the outer side of the cover plate 10. A support column 30 is fixedly connected to the middle of the outer side of the cover plate 10. A support hole 31 is provided in the support column 30 and the support hole 31 penetrates the cover plate 10. The inner side of the cover plate 10 is used to fit against the outer wall of the chimney 1 to close the window 2 on the chimney 1.
[0029] In this embodiment, the cover plate 10 is a fixed arc-shaped plate.
[0030] By mounting a magnet 20 on the outside of the cover plate 10, during use, see [reference needed]. Figure 4 The cover plate 10 can be attached to the outer wall of the chimney 1 by magnet 20. The cover plate 10 can seal the window 2 on the chimney 1 to prevent flue gas from escaping. The support column 30 can be welded and fixed to the cover plate 10. Since the support column 30 has a certain length, a support hole 31 penetrating the cover plate 10 is provided inside the support column 30. See [reference needed] Figure 3 , 5 The sampling tube of the sampling gun 3 can be inserted into the chimney 1 through the support hole 31, and the support column 30 supports the sampling gun 3. In this way, after the sampling gun 3 is inserted into the chimney 1 through the support hole 31, the sampling gun 3 can maintain a certain posture for a long time to take samples, and the operator can go down to the ground without having to maintain the posture to support the sampling gun 3 for a long time.
[0031] Example 2:
[0032] The difference in Embodiment 1 is that the cover plate 10 is a flexible plate. For example, a metal plate with a thickness of 0.4 to 1.0 mm is used. This allows the cover plate 10 to be bent, thereby enabling the cover plate 10 to adapt to chimneys 1 of different diameters.
[0033] Example 3:
[0034] Based on Embodiment 1 or Embodiment 2, a handle 50 is installed on the magnet 20. The handle 50 is provided to facilitate the removal of the cover plate 10 after the test is completed.
[0035] In this embodiment, see Figure 1 , 6 Two magnets 20 are installed at the outer ends of the cover plate 10. The handle 50 has a U-shaped structure. The threaded end of the countersunk screw 60 passes through the holes on the cover plate 10 and the magnets 20, and then screws and fixes the handle 50 with the thread.
[0036] In this embodiment, the magnet 20 is purchased from the market, and the magnet 20 has a through-hole in the middle.
[0037] Example 4:
[0038] Based on Embodiment 1, Embodiment 2, or Embodiment 3, a flexible sealing plate 40 is fixedly installed on the inner wall of the cover plate 10, and an avoidance area 41 is provided on the outer side of the support hole 31 of the sealing plate 40. By setting the sealing plate 40, the sealing effect between the cover plate 10 and the outer wall of the chimney 1 is improved.
[0039] In this embodiment, the sealing plate 40 can be made of silicone skin with a thickness of about 1 to 2 mm, and the silicone skin is bonded to the inside of the cover plate 10.
[0040] The working principle or operation process of this utility model is as follows:
[0041] See Figure 4 The cover plate 10 is attached to the outer wall of the chimney 1 by the magnet 20, and the cover plate 10 seals the window 2 on the chimney 1.
[0042] See afterward. Figure 3 , 5 The sampling tube of the sampling gun 3 is inserted into the support hole 31, so that the end of the sampling tube of the sampling gun 3 enters the chimney 1. The support column 30 supports and fixes the sampling gun 3, so that the sampling gun 3 can maintain a certain posture for sampling for a long time.
[0043] After sampling, the sampling gun 3 is pulled out, and the cover plate 10 is removed using the handle 50. Then, the chimney 1 is secured with a plate-shaped clamp to seal the window 2 on the chimney 1.
Claims
1. An atmospheric pollution emission auxiliary detection device, characterized in that: The utility model provides a cover plate (10) is provided with a magnet (20) on the outer side, and the middle part of the outer side is fixedly connected with a support column (30), the support column (30) is provided with a support hole (31), and the support hole (31) penetrates the cover plate (10); the inner side of the cover plate (10) is used for being attached with the outer wall of a chimney (1) to close the window (2) on the chimney (1).
2. The device for auxiliary detection of atmospheric pollution emissions according to claim 1, characterized in that: The cover plate (10) is a fixed arc-shaped plate.
3. The device for auxiliary detection of atmospheric pollution emissions according to claim 1, characterized in that: The cover plate (10) is a flexible plate body.
4. The device for auxiliary detection of atmospheric pollution emissions according to claim 1, characterized in that: A handle (50) is mounted on the magnet (20).
5. The device for auxiliary detection of atmospheric pollution emissions according to claim 4, characterized by the fact that: Two magnets (20) are mounted on the outer side of the cover plate (10) at both ends respectively, the handle (50) is in a U-shaped structure, the threaded end of a countersunk screw (60) penetrates the holes on the cover plate (10) and the magnet (20), and then is threadedly matched with the handle (50) to be fixed by screwing.
6. The device for auxiliary detection of atmospheric pollution emissions according to any of claims 1-5, characterized in that: A flexible sealing plate (40) is fixedly mounted on the inner wall of the cover plate (10), and an avoidance area (41) is arranged on the outer side of the support hole (31).